Tag: Radioactivity in food

Every food contains trace amounts of naturally occurring radioactive materials. When it comes to finding what is the most radioactive food on Earth, the Brazil nut consistently tops the list due to its high concentration of radium.

An average adult contains approximately 4,000 becquerels of naturally occurring potassium-40 in their body at any given time. The answer to what food has the most potassium-40 is any food that is highest in total potassium, as the radioactive isotope is a fixed percentage of all potassium.